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Brake performance factor

SOPS parameter BrakePerformanceFactor · seen in 54 SOPS files

What it controls

Adjustment factor for the service brake response in the air processing system: a higher factor makes the brakes bite earlier and harder for the same pedal travel, a lower one gives a softer initial response. The factory value depends on the vehicle type and the brake chamber sizes in the specification; it is one of the values that must be copied exactly when an APS control unit is replaced, because a wrong factor changes the pedal feel and the balance with the trailer brakes. Drivers moving from a vehicle with factor 3 to one with factor 0 report “weak brakes” even though both meet the legal deceleration — a specification check resolves it.

Possible values

0seen in 49 files
—
3seen in 5 files
—
<0-3>
Brake response factor; higher = earlier, stronger response.

Related parameters

Axle wear control (air processing system)
APS.LinWearCtrl_Axle
with · without Read